1936, series of picture postcards "to subjects German stamps" - four cards: "German Music", "German aviation", "German work" and "German family", always franked by 6 penny olympic games 1936 and special cancel "Dresden exhibition Empire garden show 1936 9. 836" and scarce red machinery special cancel "Olympic Games postal stamps exhibition Dresden 1936 1. 16. August "the stamp", faultless condition, rare offered